Comments: It has a rear usb port which is great because I routed it into my center console and it comes with an HD radio. It has support for up to a 250gb HDD and works well with Ipods and other mp3 players. It also has a 3.5mm input and 3 sets of RCA outputs on the rear. This unit also works well with my steering wheel controls.

Price: $149.00Pros: great player, looks good and once you get used to controls easy to use.Cons: took me 2 months to figure out how to change the clock, not user friendly when you first get it.Recommended? Yes

Comments: great car radio with plenty of radio presets, cd player, aux input and ipod control.it took me a while to get use to the controls but after a week or so i loved the multi control knob.

Comments: Love the fact that it has a USB & a headphone jack. Ipod is fully functional through the head-unit-with an ipod cable hooked to the USB. Remote is very easy to use.
HOWEVER....I consider myself "techy" but going through the menu on this, takes a 2 year course at any community college. It is difficult, and still keep my manual very close.
All-in-all, I would recommend this to anyone, especially with the price point. I purchased mine on Ebay.

Comments: It is a great cd player that plays all formats except dvd. Has 3 sets of outputs for stereo expansion. Sub controls , remote , all easy to use . Great sounding and Ive owned a lot of brands like alpine , kenwood , and I think this is better

Price: $169.99Pros: Produces great all around sound; Has excellent and plenty of control features via the remote; Highly expandableCons: Almost too many control features; Without the remote you are almost lost trying to control the deck features.Recommended? Yes

Comments: The Pioneer DEH-4000UB is an excellent in dash deck for the money. This unit posesses features usually reserved for systems costing twice as much and performing half as well. The equalizer controls can get confusing at times but does offer the opportunity to tweek the sound to fit your ears perfectly. SUB and full range controls are comprehensive with a good selection of factory equalizer presets. This unit has AUX and USB inputs on the face and AUX in the rear. The face plate is detachable but can be a pain to hinge back into the left side. The controls are expansive and offer a great deal of customization but are almost unnavigable without the supplied remote control.

Overall I enjoy the Pioneer DEH-P4000UB after 2 months. It seems a great deal better than most units I have used in it's price catagory @ $169.99. The features are plentiful and the sound is pretty darn good. I reserve an excellent rating until the durability is proven to me. Right now I give it 4 out of 5 stars and a Good buy rating.